package Exam;

/**
 * @author げっしょく
 * @date 2021/7/25
 */
public class Test5 {
    public static void main(String[] args) {
        printChen(9,1);
    }

    private static void printChen(int i, int j) {
        if(i == 0 ){
            return;
        }
        printChen(--i, j );
        for(int a = i+1, b = j; b<=a;b++){
            System.out.print(a+"*"+ b +"="+(a*b));
            System.out.print("\t\t");
        }
        System.out.println();
    }
}
